# Authenticator Duo vs Hidden Cameras

The clearest difference is monetization model: Hidden Cameras at free with in-app purchases against Authenticator Duo's subscription. Hidden Cameras also leads on ratings volume (32 vs 7). Authenticator Duo's advantage is update cadence (daily vs every 2 days). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Authenticator Duo sells 3 in-app purchases, starting at $6.99 per 7 days and Hidden Cameras sells 3 in-app purchases, starting at $6.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 3.9 for Authenticator Duo against 3.9 for Hidden Cameras. Both are backed by a comparable volume of ratings — 7 and 32 respectively.

Authenticator Duo ships an update daily, Hidden Cameras every 2 days. The most recent releases landed on October 15, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Authenticator Duo | Hidden Cameras |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (7 ratings)](https://appshunter.io/ios/app/authenticator-duo-two-factor/id6615062059/reviews) | **[3.9 (32 ratings)](https://appshunter.io/ios/app/hidden-cameras-spy-detector/id6621265179/reviews)** |
| Number of ratings | 7 | **32** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Daily** | Every 2 days |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 16 MB | 55 MB |
| Requires iOS | 15.0 | 15 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shawna Margie](https://appshunter.io/developer/1775558385) | [Felix Janssens](https://appshunter.io/developer/1762028150) |

## What reviewers say

### Authenticator Duo

[App page](https://appshunter.io/ios/app/authenticator-duo-two-factor/id6615062059)

This app provides robust two-factor authentication to secure your online accounts. It offers easy setup, management, and backup/sync features using advanced security protocols for peace of mind.

**Highlights:** Two-Factor Authentication (2FA), Easy Setup & Management, Backup & Sync, Advanced Security Protocols, User-Friendly Interface

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro + 3 Days Trial | $6.99 | per 7 days |
| Monthly Pro | $19.99 | per month |
| Annual Pro | $49.99 | per year |


### Hidden Cameras

[App page](https://appshunter.io/ios/app/hidden-cameras-spy-detector/id6621265179)

This app helps protect your privacy by scanning your surroundings for hidden surveillance devices. It detects signals from cameras and microphones using advanced Bluetooth and Wi-Fi scanning technology, providing real-time alerts and detailed information about potential threats.

**Highlights:** Detects hidden surveillance devices, Scans for cameras and microphones, Uses Bluetooth and Wi-Fi signals, Provides detailed device information, Offers real-time threat alerts, Premium features for extended range

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Trial | $6.99 | per 7 days |
| Monthly Trial | $14.99 | per month |
| Yearly Trial | $31.99 | per year |


## Frequently asked questions

### Is Authenticator Duo free?

Authenticator Duo is free to download, with in-app purchases available.

### Is Hidden Cameras free?

Hidden Cameras is free to download, with in-app purchases available.

### Which has better reviews, Authenticator Duo or Hidden Cameras?

Hidden Cameras is rated higher. Authenticator Duo averages 3.9 out of 5 from 7 ratings, while Hidden Cameras averages 3.9 from 32 ratings.

### Do Authenticator Duo or Hidden Cameras have ads?

Neither Authenticator Duo nor Hidden Cameras shows ads.

### Which is updated more often, Authenticator Duo or Hidden Cameras?

Authenticator Duo ships an update daily, and Hidden Cameras every 2 days. Most recently, Authenticator Duo was updated on October 15, 2026 and Hidden Cameras on October 20, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*